package ui.server;
/*
 * Copyright (c) Ian F. Darwin, http://www.darwinsys.com/, 1996-2002.
 * All rights reserved. Software written by Ian F. Darwin and others.
 * $Id: LICENSE,v 1.8 2004/02/09 03:33:38 ian Exp $
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 * 
 * Java, the Duke mascot, and all variants of Sun's Java "steaming coffee
 * cup" logo are trademarks of Sun Microsystems. Sun's, and James Gosling's,
 * pioneering role in inventing and promulgating (and standardizing) the Java 
 * language and environment is gratefully acknowledged.
 * 
 * The pioneering role of Dennis Ritchie and Bjarne Stroustrup, of AT&T, for
 * inventing predecessor languages C and C++ is also gratefully acknowledged.
 */

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Container;
import java.awt.Dimension;
import java.io.File;
import java.util.Collections;
import java.util.Vector;

import javax.swing.BoxLayout;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeModel;

/**
 * Display a file system in a JTree view
 * 
 * @version $Id: FileTree.java,v 1.9 2004/02/23 03:39:22 ian Exp $
 * @author Ian Darwin
 */
public class JFileTree extends JPanel {
  /** Construct a FileTree */
	private JTree tree;
	public JFileTree(File dir) {
		setLayout(new BorderLayout());
		
		// Make a tree list with all the nodes, and make it a JTree
		tree = new JTree(addNodes(null, dir));

	    // Add a listener
	    tree.addTreeSelectionListener(new TreeSelectionListener() {
	      public void valueChanged(TreeSelectionEvent e) {
	        DefaultMutableTreeNode node = (DefaultMutableTreeNode) e
	            .getPath().getLastPathComponent();
	        System.out.println("You selected " + node);
	      }
	    });

	    // Lastly, put the JTree into a JScrollPane.
	    JScrollPane scrollpane = new JScrollPane();
	    scrollpane.getViewport().add(tree);
	    add(BorderLayout.CENTER, scrollpane);
	}
	
	/** Add nodes from under "dir" into curTop. Highly recursive. */
	DefaultMutableTreeNode addNodes(DefaultMutableTreeNode curTop, File dir) 
	{
	    String curPath = dir.getPath();
	    DefaultMutableTreeNode curDir = new DefaultMutableTreeNode(curPath);
	    if (curTop != null) { // should only be null at root
	      curTop.add(curDir);
	    }
	    Vector ol = new Vector();
	    String[] tmp = dir.list();
	    for (int i = 0; i < tmp.length; i++)
	      ol.addElement(tmp[i]);
	    Collections.sort(ol, String.CASE_INSENSITIVE_ORDER);
	    File f;
	    Vector files = new Vector();
	    // Make two passes, one for Dirs and one for Files. This is #1.
	    for (int i = 0; i < ol.size(); i++) {
	      String thisObject = (String) ol.elementAt(i);
	      String newPath;
	      if (curPath.equals("."))
	        newPath = thisObject;
	      else
	        newPath = curPath + File.separator + thisObject;
	      if ((f = new File(newPath)).isDirectory())
	        addNodes(curDir, f);
	      else
	        files.addElement(thisObject);
	    }
	    // Pass two: for files.
	    for (int fnum = 0; fnum < files.size(); fnum++)
	      curDir.add(new DefaultMutableTreeNode(files.elementAt(fnum)));
	    return curDir;
	}
	
	public void reload(File dir)
	{
		DefaultMutableTreeNode curDir = addNodes(null, dir); 
		tree.setModel(new DefaultTreeModel(curDir));

	}
	public Dimension getMinimumSize() 
	{
		return new Dimension(200, 400);
	}
	
	public Dimension getPreferredSize() 
	{
		return new Dimension(200, 400);
	}
}
